/*******************************************************************************
 * Copyright (c) 2018, College of William & Mary
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the College of William & Mary nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COLLEGE OF WILLIAM & MARY BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * PRIMME: https://github.com/primme/primme
 * Contact: Andreas Stathopoulos, a n d r e a s _at_ c s . w m . e d u
 *******************************************************************************
 * File: common_eigs.h
 *
 * Purpose - Header file containing constants used throughout PRIMME
 *
 ******************************************************************************/

#ifndef COMMON_EIGS_H
#define COMMON_EIGS_H

/* Values for flags */

enum conv_flags {
   UNCONVERGED,
   SKIP_UNTIL_RESTART,
   CONVERGED,
   PRACTICALLY_CONVERGED
};

#define EVAL KIND(REAL,SCALAR)
#define XEVAL KIND(XREAL,XSCALAR)
#define HEVAL KIND(HREAL,HSCALAR)
#define EVAL_ABS(X) KIND(fabs,ABS)(X)
#define EVAL_REAL_PART(X) KIND((X),REAL_PART(TO_COMPLEX(X)))
#define EVAL_IMAGINARY_PART(X) KIND(0,IMAGINARY_PART(TO_COMPLEX(X)))

#endif /* COMMON_EIGS_H */
